Leadshine® CS-M22331-L NEMA-23 High Speed Closed Loop Stepper Motor
Product Description
The Leadshine® CS-M22331-L is a high-speed NEMA 23 closed loop stepper motor designed for applications requiring high torque, accurate positioning, and reliable motion control.
This 2-phase hybrid stepper motor features a holding torque of 3.1 N·m and a rated phase current of 5.0 A. It integrates a 1,000-line incremental quadrature rotary encoder, providing 4,000 counts per revolution for position feedback when paired with a compatible closed loop stepper drive.
The integrated encoder enables real-time motor position monitoring and correction, helping prevent step loss and improving motion reliability compared with conventional open loop stepper motor systems.
With a 105 mm motor length, an 8 mm shaft, and a compact NEMA 23 frame, the CS-M22331-L combines high torque with precise closed loop operation. Its low motor heating, low vibration, and high positioning accuracy make it suitable for CNC machinery, automation equipment, and other demanding motion control applications.
Key Features
- NEMA 23 Frame: Standard 57 mm class frame size for a wide range of motion control applications.
- High Holding Torque: Delivers 3.1 N·m holding torque.
- High-Speed Performance: Designed for applications requiring high-speed stepper motor operation.
- Closed Loop Operation: Integrated encoder provides position feedback for closed loop control.
- 1,000-Line Encoder: Integrated incremental quadrature encoder with 4,000 counts per revolution.
- High Positioning Accuracy: Position accuracy specified as 1.8° ±0.09° in the model drawing.
- 5.0 A Phase Current: Suitable for compatible high-current closed loop stepper drives.
- Low Motor Heating: Designed for reduced motor heating compared with conventional open loop operation.
- Low Vibration: Supports smooth and stable motor movement.
- 8 mm Shaft: Standard metric shaft configuration.
- Industrial Construction: Built for reliable operation in industrial motion control applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Leadshine |
| Model | CS-M22331-L |
| Series | CS-M |
| Motor Type | Closed Loop Hybrid Stepper Motor |
| Motor Phase | 2-Phase |
| Frame Size | NEMA 23 |
| Step Angle | 1.8° |
| Holding Torque | 3.1 N·m |
| Rated Phase Current | 5.0 A |
| Rated Voltage | 2 V |
| Phase Resistance | 0.4 Ω ±10% |
| Phase Inductance | 1.8 mH ±20% |
| Rotor Inertia | 0.84 kg·cm² |
| Encoder Type | Incremental Quadrature Rotary Encoder |
| Encoder Resolution | 1,000 CPR (4,000 counts/rev) |
| Position Accuracy | 1.8° ±0.09° |
| Motor Length | 105 mm |
| Motor Body Height | 70 mm |
| Frame Dimensions | 60 × 60 mm |
| Shaft Diameter | 8 mm |
| Center Diameter | 38.1 mm |
| Protection Rating | IP40 |
| Insulation Class | Class B |
| Dielectric Strength | 500 VAC for 1 minute |
| Insulation Resistance | 100 MΩ (500 VDC) |
| Maximum Temperature Rise | 80 K |
| Weight | 1.6 kg |
Mechanical Dimensions
The CS-M22331-L features a NEMA 23 mounting frame with a 60 × 60 mm front face and a motor body length of approximately 105 mm.
Key mechanical dimensions from the supplied model-specific drawing:
- Frame Size: 60 × 60 mm.
- Motor Body Length: 105 ±1 mm.
- Motor Body Height: 70 mm.
- Shaft Diameter: 8 mm, with a -0.013 mm tolerance.
- Shaft Extension: Approximately 21 ±1 mm as shown in the drawing.
- Center Diameter: 38.1 mm.
- Mounting Holes: 4 × Ø5 mm.
- Mounting Hole Spacing: 47.14 ±0.2 mm.
The motor is supplied with separate motor and encoder cables. Refer to the mechanical drawing for the complete mounting dimensions and cable connection details.
Encoder Feedback and Closed Loop Operation
The CS-M22331-L integrates a 1,000-line incremental quadrature encoder that provides 4,000 counts per revolution.
The encoder sends position feedback to a compatible closed loop stepper drive, allowing the system to monitor the actual motor position and correct position errors in real time.
This closed loop operation helps prevent missed steps, improves positioning reliability, and allows the motor to use its available torque more effectively than a conventional open loop stepper motor system.
Motor Electrical Connections
The motor power connection uses four wires:
| Motor Phase | Wire Color |
|---|---|
| A+ | Black |
| A- | Red |
| B+ | Yellow |
| B- | Green |
Encoder Connections
The integrated encoder uses differential A/B signals.
| Encoder Pin | Wire Color | Signal |
|---|---|---|
| 1 | Black | A+ |
| 2 | Red | VCC (+5 V) |
| 3 | White | GND |
| 11 | Yellow | B+ |
| 12 | Green | B- |
| 13 | Blue | A- |
Connect the encoder and motor cables to the corresponding terminals on a compatible closed loop drive. Follow the motor drawing and drive wiring instructions carefully.
Compatible Stepper Motor Drive
The Leadshine CS-M22331-L is designed to operate with a compatible closed loop stepper drive that supports:
- 2-phase stepper motors.
- 5.0 A rated phase current.
- Incremental quadrature encoder feedback.
- The required encoder resolution and differential signal connections.
The Leadshine CS-D508 user manual lists the CS-M22331-L among its compatible motors tested with a 1,000-line encoder. This makes the CS-D508 a documented compatible drive option for this motor.
Always verify the drive's current configuration and encoder wiring before installation.
Applications
The Leadshine CS-M22331-L is suitable for motion control applications requiring high torque, accurate positioning, and reliable closed loop performance, including:
- CNC routers and CNC milling machines.
- CNC laser cutting machines.
- CNC plasma cutting systems.
- Industrial automation equipment.
- Laboratory automation instruments.
- Electronic manufacturing equipment.
- Packaging machinery.
- High-speed positioning systems.
- X-Y motion platforms.
Frequently Asked Questions
1. What is the holding torque of the Leadshine CS-M22331-L?
The CS-M22331-L provides a holding torque of 3.1 N·m, making it suitable for applications requiring relatively high torque from a NEMA 23 closed loop stepper motor.
2. What is the rated current of the CS-M22331-L?
The rated phase current is 5.0 A. The compatible stepper drive must support this motor current and be configured according to the motor's electrical specifications.
3. Does the CS-M22331-L include an encoder?
Yes. The motor includes an integrated 1,000-line incremental quadrature encoder, providing 4,000 counts per revolution.
4. What is the difference between a closed loop and an open loop stepper motor?
A closed loop stepper motor uses encoder feedback to monitor its actual position and allow the drive to correct position errors. An open loop stepper system operates without encoder feedback, so it cannot directly detect missed steps.
5. Which driver is compatible with the CS-M22331-L?
The Leadshine CS-D508 is listed in its user manual as a tested compatible drive for the CS-M22331-L with a 1,000-line encoder. Other closed loop drives may also be suitable if they support the motor's 5.0 A phase current and encoder specifications.
6. What is the shaft diameter of the CS-M22331-L?
The motor has an 8 mm metric shaft, as specified on the official Leadshine product page and model drawing.
7. What are the dimensions of the CS-M22331-L?
The motor has a NEMA 23 frame with a 60 × 60 mm front face and a motor body length of approximately 105 mm. The shaft diameter is 8 mm.
8. What applications is the CS-M22331-L suitable for?
It is suitable for CNC machines, laser cutting equipment, industrial automation, packaging machinery, and positioning systems requiring high torque and closed loop motion control.